Will a comparison of an integer and a string "" work in PHP?

Yes, a comparison of an integer and a string "" will work in PHP. In PHP, when comparing an integer and a string, PHP will automatically convert the string to a numeric value. An empty string "" will be converted to 0 during the comparison. This behavior is known as type juggling or type coercion in PHP. It's important to note that when comparing values of different types in PHP, the comparison rules can be complex due to the type juggling mechanism. It's recommended to use strict type comparison (using === or !==) to ensure both value and type equality.